Hi Sophiet, It must be very difficult for all concerned. I saw a guy in Cheshire who does IBS home recordings for children and adults. I found him very good here is a link that might help your son.
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.